Looking through the nice collection of threads so far, I've straightened out the thread-titles a bit (apart from the Canon ones) by keeping strictly to one rule:
Name of manufacturer first
Focal length of the lens second
Aperture third
and only then the plethora of other abbreviations and designations.

I find it easier to get an overview or find a specific lens, if the ordering of the three most important information-bits is always the same.

What do you think?
Can we also put the "EF" or "EF-S" of the Canon lenses after "Name, Length, Aperture"?

i bought nikon d5000 slr camera. i got kit lens with 18-55mm. my aim is to become good photgrapher, like taking photos of weddings and stuff like that, can anyone tell what kind of lens i need to take good photos.

icant afford to buy nion lenses, cos very expensive. are sigma or tamron lenses good like niokn lenses? do i need close up lens. or what is macrolens mean
thx